How to make ragdoll arms point towards mouse?

I have made a ragdoll for my game and now I want to make it's arms point towards the mouse. The arms are connected to the torso with hinge joints. Anything would help here is my current code

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class rotate : MonoBehaviour
 {
     private Vector3 mousePos;
     public float addOn;
     GameObject point;
     void Start() {
         point = transform.GetChild(0).gameObject;
     }
     void Update() {
         mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
     }
     void FixedUpdate()
     {
  
         Vector3 difference = mousePos - point.transform.position;
  
         difference.Normalize();
  
         float rotationZ = Mathf.Atan2(difference.y, difference.x) * Mathf.Rad2Deg;
         print(rotationZ);
         float currentRotation = transform.rotation.z;
         transform.RotateAround(point.transform.position,new Vector3(0,0,1),rotationZ);
 
     }
 }